CN219240552U - High-pressure grouting machine - Google Patents

Abstract

The application discloses high-pressure grouting machine, including annotating hopper, notes workbin, high-pressure pump, discharging pipe and shower nozzle, be provided with the baffle in the notes hopper, the baffle will the internal separation of annotating the hopper becomes thick liquid chamber and washing liquid chamber, the thick liquid chamber with the washing liquid chamber is not communicated with each other, the thick liquid chamber with the lower extreme in washing liquid chamber all is provided with the discharge gate, two the discharge gate is connected with the tee bend switching-over valve jointly, the exit end intercommunication of tee bend switching-over valve annotates the workbin, the exit end of annotating the workbin is connected the entry end of high-pressure pump, the exit end of high-pressure pump is connected the discharging pipe, the discharging pipe is kept away from the one end of high-pressure pump is connected the shower nozzle. The construction efficiency of slip casting operation can be improved.

Description

High-pressure grouting machine

Technical Field

The utility model relates to the technical field of water conservancy construction equipment, in particular to a high-pressure grouting machine.

Background

Grouting is the process of delivering slurry under pressure into cracks in the foundation of a building, joints in fault fracture zones or the building itself. The impermeability and the integrity of the irrigated stratum or the building can be improved by grouting, the foundation condition is improved, and the safe operation of the building is ensured.

Grouting operation is carried out by means of a grouting machine, grouting liquid with waterproof and plugging functions is injected into the gaps along the paths of the grouting machine, the pipelines, the expansion screws and the gaps by the grouting machine under the action of high pressure, and the grouting liquid expands in the gaps when meeting water to form compact tissues, so that the waterproof effect is achieved. In the process of waterproof construction, the grouting machine may need to perform grouting operation on a plurality of positions, and due to the characteristic that grouting liquid is solidified at high speed after meeting water, when the grouting machine finishes grouting operation on one position, the grouting machine needs to be suspended, and grouting operation is continued after the grouting machine moves to the position where grouting is needed to be performed next. Because of the characteristic of the grouting liquid that is solidified very fast after meeting water, once the grouting machine is stopped, the pipeline and the spray head are easy to be blocked, so that grouting operation cannot be continued in time, construction progress is delayed, and the construction efficiency of the whole grouting operation is affected.

Disclosure of Invention

In order to improve the efficiency of grouting operation, this application provides a high-pressure grouting machine.

The application provides a high-pressure grouting machine adopts following technical scheme:

the utility model provides a high-pressure grouting machine, includes annotates hopper, notes workbin, high-pressure pump, discharging pipe and shower nozzle, be provided with the baffle in annotating the hopper, the baffle will annotate the internal partition of hopper and become thick liquid chamber and washing liquid chamber, the thick liquid chamber with the washing liquid chamber is each other not communicated, the thick liquid chamber with the lower extreme in washing liquid chamber all is provided with the discharge gate, two the discharge gate is connected with the tee bend switching-over valve jointly, the exit end intercommunication of tee bend switching-over valve annotates the workbin, the exit end of annotating the workbin is connected the entry end of high-pressure pump, the exit end of high-pressure pump is connected the discharging pipe, the discharging pipe is kept away from the one end of high-pressure pump is connected the shower nozzle.

By adopting the technical scheme, when in use, the three-way reversing valve is in a completely closed state in an initial state, slurry is filled into the slurry cavity, and cleaning liquid is filled into the cleaning liquid cavity; when grouting operation is needed, the three-way reversing valve is adjusted to enable the slurry cavity to be communicated with the grouting box, the cleaning liquid cavity is not communicated with the grouting box, slurry enters the grouting box from the slurry cavity, the high-pressure pump is started, and under the action of the high-pressure pump, the slurry passes through the high-pressure pump and the discharging pipe from the outlet end of the grouting box and is sprayed out from the spray head, and the high-pressure pump is closed until grouting operation is completed; after the grouting operation on one position is finished, the three-way reversing valve can be directly regulated, the cleaning liquid cavity is communicated with the grouting box, and the slurry cavity is not communicated with the grouting box, so that the cleaning liquid enters the grouting box from the cleaning liquid cavity, then the spray head is aligned to other positions, the high-pressure pump is started, under the action of the high-pressure pump, the cleaning liquid passes through the high-pressure pump and the discharge pipe from the outlet end of the grouting box and is sprayed out from the spray head, through the process, the grouting machine can be rapidly switched between a grouting operation mode and a cleaning mode, and after the grouting operation is finished, the inside of the grouting box, the inside of the high-pressure pump, the inside of the discharge pipe and the inside of the spray head can be timely flushed, thereby reducing the possibility of blockage of the grouting machine, enabling the grouting machine to be timely and smoothly carried out grouting operation on the position where grouting is required to be carried out, reducing the possibility of delaying the construction progress, and being beneficial to improving the construction efficiency of the whole grouting operation.

Optionally, the top slip in thick liquid chamber is provided with the carrier bar, the one end sliding connection of carrier bar is in the top of annotating the hopper, the other end of carrier bar is located the top of baffle, the bottom of carrier bar is connected with the movable plate, the vertical setting of movable plate stretches into inside the thick liquid chamber, and the both sides of movable plate all with the inner wall sliding connection in thick liquid chamber, be equipped with a plurality of first through-hole on the movable plate, every first through-hole all link up the movable plate.

Through adopting above-mentioned technical scheme, when using, when filling the thick liquid in the thick liquid chamber, slide the carrier bar, make the carrier bar at the top reciprocating motion in thick liquid chamber, the movable plate moves along with the carrier bar to play the effect of reciprocal stirring to the thick liquid that lies in the thick liquid intracavity, be favorable to making the thick liquid more even, reduce thick liquid because the possibility that the settlement takes place to stand, be favorable to reducing the possibility that the thick liquid intracavity takes place to block up, in addition, when thick liquid enters into the injection box, also be favorable to reducing the wall built-up rate of thick liquid in thick liquid intracavity portion.

Optionally, a guide bar is fixedly connected to the inner wall of the slurry cavity, a guide groove is formed in the moving plate, the guide groove penetrates through the moving plate, and the guide bar is in sliding connection with the guide groove.

Through adopting above-mentioned technical scheme, the sliding fit of gib block and guide way can play the effect of direction to the removal of movable plate for the movable plate is more stable at the in-process that removes, reduces the movable plate because the resistance that receives the thick liquid takes place the possibility of skew.

Optionally, be provided with stirring subassembly in the injection box, stirring subassembly includes dwang and stirring vane, the dwang rotates to be connected on the inner wall of injection box, fixedly connected with a plurality of on the dwang stirring vane, the lateral wall of injection box is equipped with the second through-hole, be provided with first motor on the lateral wall of injection box, the one end rotation of dwang passes the second through-hole, the pivot of first motor with dwang fixed connection.

Through adopting above-mentioned technical scheme, stirring assembly's setting can stir the thick liquid or the washing liquid that enter into the injection box, when using, start first motor, the pivot of first motor drives the dwang and rotates, stirring vane stirs the liquid in the injection box along with the rotation of dwang, on the one hand, when the liquid in the injection box is the thick liquid, can make the thick liquid more even, thereby reduce the possibility that takes place to precipitate, be favorable to reducing the possibility that the injection box takes place to block up, on the other hand, when the liquid in the injection box is the washing liquid, can make the washing liquid constantly wash the inner wall of injection box along with stirring vane's stirring, be favorable to the cleaning performance better when.

Optionally, the rubber ring is rotatably arranged on the rotating rod in a penetrating manner, and is positioned in the second through hole and abuts against the inner wall of the second through hole.

By adopting the technical scheme, the sealing effect of the injection box can be enhanced by the arrangement of the rubber ring, and the possibility that liquid in the injection box leaks from the gap between the inner wall of the second through hole and the rotating rod is reduced.

Optionally, the discharging pipe includes first pipe and second pipe, first pipe is the hose, the one end of first pipe with the exit end fixed connection of high-pressure pump, the other end fixed connection of first pipe the second pipe, the second pipe is the hard tube, the second pipe is kept away from the one end of first pipe is connected the shower nozzle.

Through adopting above-mentioned technical scheme, first pipe can nimble crooked, and the staff of being convenient for takes by the second pipe to be convenient for adjust the orientation of shower nozzle, the scope that makes the staff when carrying out the slip casting operation is wider.

Optionally, a clamp for clamping the second pipe is fixedly arranged on the outer wall of the injection box.

Through adopting above-mentioned technical scheme, through setting up the clamp, after grouting operation is accomplished, can arrange the clamp with the second pipe in for the clamp is with the second pipe chucking, is convenient for fix and accomodate second pipe and shower nozzle, reduces because place at will and lead to the shower nozzle by the collision and take place the possibility of damage.

Optionally, the bottom of annotating the workbin is provided with the travelling car, fixedly connected with push rod on the travelling car.

Through adopting above-mentioned technical scheme, the setting of travelling car makes the staff can very convenient removal in the position of slip casting machine, when the position that needs the change slip casting machine, only need promote the push rod and can accomplish the operation, and is simple convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the three-way reversing valve is used, the three-way reversing valve is in a completely closed state in an initial state, slurry is filled into the slurry cavity, and cleaning liquid is filled into the cleaning liquid cavity; when grouting operation is needed, the three-way reversing valve is adjusted to enable the slurry cavity to be communicated with the grouting box, the cleaning liquid cavity is not communicated with the grouting box, slurry enters the grouting box from the slurry cavity, the high-pressure pump is started, and under the action of the high-pressure pump, the slurry passes through the high-pressure pump and the discharging pipe from the outlet end of the grouting box and is sprayed out from the spray head, and the high-pressure pump is closed until grouting operation is completed; after the grouting operation on one position is finished, the three-way reversing valve can be directly regulated, the cleaning liquid cavity is communicated with the grouting box, and the slurry cavity is not communicated with the grouting box, so that the cleaning liquid enters the grouting box from the cleaning liquid cavity, then the spray head is aligned to other positions, the high-pressure pump is started, under the action of the high-pressure pump, the cleaning liquid passes through the high-pressure pump and the discharge pipe from the outlet end of the grouting box and is sprayed out from the spray head, through the process, the grouting machine can be rapidly switched between a grouting operation mode and a cleaning mode, and after the grouting operation is finished, the inside of the grouting box, the inside of the high-pressure pump, the inside of the discharge pipe and the inside of the spray head can be timely flushed, thereby reducing the possibility of blockage of the grouting machine, enabling the grouting machine to be timely and smoothly carried out grouting operation on the position where grouting is required to be carried out, reducing the possibility of delaying the construction progress, and being beneficial to improving the construction efficiency of the whole grouting operation.

2. When the slurry filling device is used, when slurry is filled into the slurry cavity, the bearing rod is slid, so that the bearing rod moves back and forth at the top of the slurry cavity, the moving plate moves along with the bearing rod, the slurry in the slurry cavity plays a role in back and forth stirring, the slurry is more uniform, the possibility of precipitation of the slurry due to standing is reduced, the possibility of blocking in the slurry cavity is reduced, and in addition, when the slurry enters the injection box, the wall hanging rate of the slurry in the slurry cavity is reduced.

3. The setting of stirring subassembly can stir the thick liquid or the washing liquid that enter into the injection box, when using, start first motor, the pivot of first motor drives the dwang and rotates, stirring vane stirs the liquid in the injection box along with the rotation of dwang, on the one hand, when the liquid in the injection box is the thick liquid, can make the thick liquid more even to reduce the possibility that takes place to precipitate, be favorable to reducing the possibility that the injection box takes place to block up, on the other hand, when the liquid in the injection box is the washing liquid, can make the washing liquid constantly wash the inner wall of injection box along with stirring vane's stirring, the cleaning performance is better when being favorable to.

Drawings

Fig. 1 is a schematic structural view of a high-pressure grouting machine according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a filling hopper according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a filling box embodied in an embodiment of the present application.

Reference numerals illustrate:

1. a high pressure pump; 2. a spray head; 3. a partition plate; 4. a slurry chamber; 5. a cleaning liquid chamber; 6. a first chute; 7. a guide rod; 8. a second chute; 9. a threaded rod; 10. a second motor; 11. a first slider; 12. a second slider; 13. a first through hole; 14. a guide bar; 15. a guide groove; 16. a three-way reversing valve; 17. a first tube; 18. a second tube; 19. a clamp; 20. a rotating lever; 21. stirring blades; 22. a first motor; 23. a rubber ring; 24. a moving trolley; 25. a push rod; 26. a support rod; 27. a filling box; 28. a filling hopper; 29. a moving plate; 30. a carrier bar.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a high-pressure grouting machine.

Referring to fig. 1 and 2, a high-pressure grouting machine comprises a grouting hopper 28, a grouting box 27, a high-pressure pump 1, a discharging pipe and a spray head 2, wherein a partition plate 3 is fixedly arranged in the grouting hopper 28, the partition plate 3 divides the interior of the grouting hopper 28 into a slurry cavity 4 and a cleaning liquid cavity 5, and the slurry cavity 4 and the cleaning liquid cavity 5 are not communicated with each other.

Referring to fig. 1 and 2, the top of the slurry chamber 4 is slidably provided with a carrier bar 30. The top of the injection hopper 28 is provided with a first chute 6, a guide rod 7 is fixedly arranged on the woolen ratio of the first chute 6, the top of the partition plate 3 is provided with a second chute 8, the inner wall of the second chute 8 is rotatably provided with a threaded rod 9, the outer wall of the injection hopper 28 is fixedly provided with a second motor 10, and the rotating shaft of the second motor 10 is fixedly connected with the threaded rod 9; one end fixedly connected with first slider 11 of carrier bar 30, the other end fixedly connected with second slider 12 of carrier bar 30, first slider 11 slides and wears to establish on guide bar 7 and sliding connection is inside first spout 6, second slider 12 threaded connection is on threaded rod 9 and sliding connection is inside second spout 8. The bottom fixedly connected with movable plate 29 of carrier bar 30 is equipped with a plurality of first through-hole 13 on the movable plate 29, and every first through-hole 13 all link up movable plate 29, and movable plate 29 vertical setting stretches into inside the thick liquid chamber 4, and the both sides of movable plate 29 all with the inner wall sliding connection in thick liquid chamber 4.

When the slurry chamber 4 is in use, the second motor 10 is started, the threaded rod 9 starts to rotate under the driving of the second motor 10, so that the second sliding block 12 slides in the second sliding groove 8 along the length direction of the threaded rod 9, the bearing rod 30 is driven to slide with the first sliding block 11, the first sliding block 11 is in sliding fit with the guide rod 7, the bearing rod 30 can be moved at the top of the slurry chamber 4, and the moving plate 29 can be moved along with the bearing rod 30 in the slurry chamber 4. When the slurry is filled into the slurry cavity 4, the second motor 10 is controlled to perform forward rotation and reverse rotation, so that the movable plate 29 can reciprocate in the slurry cavity 4, the slurry in the slurry cavity 4 can be stirred reciprocally, the slurry is more uniform, the possibility of precipitation of the slurry due to standing is reduced, the possibility of blockage in the slurry cavity 4 is reduced, and in addition, when the slurry enters the injection box 27, the wall hanging rate of the slurry in the slurry cavity 4 is reduced.

Referring to fig. 2, in order to play a further guiding role in the movement of the moving plate 29, the possibility that the moving plate 29 is offset due to the resistance of the slurry is reduced, guide strips 14 are fixedly connected to two opposite inner walls of the slurry chamber 4, the two guide strips 14 are located at the lower parts of the inner walls of the slurry chamber 4, guide grooves 15 are formed in two opposite sides of the moving plate 29, the two guide grooves 15 penetrate the moving plate 29, and one guide strip 14 is correspondingly and slidably connected with one guide groove 15.

Referring to fig. 1 and 2, the lower ends of the slurry chamber 4 and the cleaning liquid chamber 5 are respectively provided with a discharge port, the two discharge ports are commonly connected with a three-way reversing valve 16, the three-way reversing valve 16 is an electromagnetic valve, the outlet end of the three-way reversing valve 16 is communicated with the top of a filling box 27, the top of the filling box 27 is fixedly connected with four supporting rods 26 for supporting the filling hopper 28, the four supporting rods 26 are fixedly connected to four corners of the bottom of the filling hopper 28, the outlet end of the filling box 27 is arranged on the side wall of the filling box 27, the outlet end of the filling box 27 is fixedly connected with the inlet end of a high-pressure pump 1, and the outlet end of the high-pressure pump 1 is fixedly connected with a discharge pipe.

Referring to fig. 1, the discharging pipe includes a first pipe 17 and a second pipe 18, the first pipe 17 is a hose, one end of the first pipe 17 is fixedly connected with the outlet end of the high-pressure pump 1, the other end of the first pipe 17 is fixedly connected with the second pipe 18, the second pipe 18 is a hard pipe, and one end of the second pipe 18 far away from the first pipe 17 is fixedly connected with the spray head 2.

The first pipe 17 can be flexibly bent, and the second pipe 18 is convenient for a worker to take, so that the direction of the spray head 2 can be conveniently adjusted, and the range of the worker in grouting operation is wider.

Referring to fig. 1, in order to fix and store the discharge pipe, two clips 19 for clamping the second pipe 18 are fixedly provided on the outer wall of the injection box 27, an opening for conveniently clamping and removing the second pipe 18 is provided on each clip 19, and the two clips 19 are arranged in a vertical direction and clamp both ends of the second pipe 18, so that the possibility of damage to the spray head 2 due to collision caused by random placement can be reduced.

Referring to fig. 1 and 3, a stirring assembly is provided in the injection box 27, the stirring assembly comprises a rotating rod 20 and stirring blades 21, a first motor 22 is fixedly arranged on the outer side wall of the injection box 27, the rotating rod 20 is rotationally connected inside the injection box 27 along the horizontal direction, a second through hole is formed in the side wall of one side of the injection box 27, the side wall of the injection box 27 is penetrated by the second through hole, a rubber ring 23 is arranged in the second through hole, the outer wall of the rubber ring 23 abuts against the inner wall of the second through hole, one end of the rotating rod 20 is rotationally connected with the inner wall of the injection box 27, the other end of the rotating rod 20 is rotationally connected with the rubber ring 23 and fixedly connected with a first clicking rotating shaft, the inner wall of the rubber ring 23 is tightly attached to the rotating rod 20, and a plurality of stirring blades 21 are fixedly connected on the rotating rod 20 along the length direction.

The setting of stirring subassembly can stir the thick liquid or the washing liquid that enter into the injection box 27, and when using, starts first motor 22, and the pivot of first motor 22 drives dwang 20 and rotates, and stirring vane 21 stirs the liquid in the injection box 27 along with the rotation of dwang 20. On the one hand, when the liquid in the injection box 27 is slurry, the slurry can be more uniform, so that the possibility of precipitation is reduced, and the possibility of blockage in the injection box 27 is reduced; on the other hand, when the liquid in the injection tank 27 is the cleaning liquid, the cleaning liquid can be made to continuously flush the inner wall of the injection tank 27 with stirring of the stirring blade 21, which is advantageous in that the cleaning effect is better. The sealing ring can strengthen the sealing effect of the injection box 27, and reduce the possibility of leakage of liquid in the injection box 27 from a gap between the inner wall of the second through hole and the rotating rod 20.

Referring to fig. 1, for convenient movement at the position of the grouting machine, a moving trolley 24 is fixedly provided at the bottom of the grouting box 27, and a push rod 25 is fixedly connected to the moving trolley 24. When the position of the grouting machine needs to be changed, the operation can be completed by pushing the push rod 25, and the grouting machine is simple and convenient.

The implementation principle of the high-pressure grouting machine is as follows:

when in use, the three-way reversing valve 16 is in a completely closed state in the initial state, the slurry cavity 4 is filled with slurry, and the cleaning liquid cavity 5 is filled with cleaning liquid; when grouting operation is required, the three-way reversing valve 16 is adjusted to enable the slurry cavity 4 to be communicated with the grouting box 27, the cleaning liquid cavity 5 is not communicated with the grouting box 27, slurry enters the grouting box 27 from the slurry cavity 4, the high-pressure pump 1 is started, and under the action of the high-pressure pump 1, the slurry passes through the high-pressure pump 1 and the discharging pipe from the outlet end of the grouting box 27 and is sprayed out from the spray head 2 until grouting operation is completed, and the high-pressure pump 1 is closed; after the grouting operation on one position is completed, the three-way reversing valve 16 can be directly adjusted, the cleaning liquid cavity 5 is communicated with the grouting box 27, and the slurry cavity 4 is not communicated with the grouting box 27, so that the cleaning liquid enters the grouting box 27 from the cleaning liquid cavity 5, then the spray head 2 is aligned to other positions, the high-pressure pump 1 is started, under the action of the high-pressure pump 1, the cleaning liquid passes through the high-pressure pump 1 and the discharge pipe from the outlet end of the grouting box 27 and is sprayed out of the spray head 2, through the process, the grouting machine can be rapidly switched between a grouting operation mode and a cleaning mode, and after the grouting operation is completed, the inside of the grouting box 27, the inside of the high-pressure pump 1, the inside of the discharge pipe and the inside of the spray head 2 can be timely flushed, thereby reducing the possibility of blockage of the grouting machine, enabling the grouting operation to be timely and smoothly continued on the position where grouting is required to be performed on the next position, reducing the possibility of delaying construction progress, and being beneficial to improving the construction efficiency of the whole grouting operation.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A high pressure grouting machine, which is characterized in that: including annotate hopper (28), annotate workbin (27), high-pressure pump (1), discharging pipe and shower nozzle (2), be provided with baffle (3) in annotating hopper (28), baffle (3) will annotate the internal separation of hopper (28) into thick liquid chamber (4) and washing liquid chamber (5), thick liquid chamber (4) with washing liquid chamber (5) each other do not communicate with each other, thick liquid chamber (4) with the lower extreme in washing liquid chamber (5) all is provided with the discharge gate, two the discharge gate is connected with tee bend switching-over valve (16) jointly, the exit end intercommunication of tee bend switching-over valve (16) annotate workbin (27), the exit end of annotating workbin (27) is connected the entry end of high-pressure pump (1), the exit end connection of high-pressure pump (1) the discharging pipe, the discharging pipe is kept away from the one end connection of high-pressure pump (1) shower nozzle (2).

2. A high pressure grouting machine as claimed in claim 1, wherein: the top slip of thick liquid chamber (4) is provided with carrier bar (30), the one end sliding connection of carrier bar (30) is in the top of annotating hopper (28), the other end of carrier bar (30) is located the top of baffle (3), the bottom of carrier bar (30) is connected with movable plate (29), movable plate (29) vertical setting and stretch into inside thick liquid chamber (4), and the both sides of movable plate (29) all with the inner wall sliding connection of thick liquid chamber (4), be equipped with a plurality of first through-hole (13) on movable plate (29), every first through-hole (13) all link up movable plate (29).

3. A high pressure grouting machine as claimed in claim 2, wherein: the slurry stirring device is characterized in that a guide strip (14) is fixedly connected to the inner wall of the slurry cavity (4), a guide groove (15) is formed in the moving plate (29), the guide groove (15) penetrates through the moving plate (29), and the guide strip (14) is in sliding connection with the guide groove (15).

4. A high pressure grouting machine as claimed in claim 1, wherein: be provided with stirring subassembly in injection box (27), stirring subassembly includes dwang (20) and stirring vane (21), dwang (20) rotate and connect on the inner wall of injection box (27), fixedly connected with a plurality of stirring vane (21) on dwang (20), the lateral wall of injection box (27) is equipped with the second through-hole, be provided with first motor (22) on the lateral wall of injection box (27), the one end rotation of dwang (20) passes the second through-hole, the pivot of first motor (22) with dwang (20) fixed connection.

5. The high pressure grouting machine according to claim 4, wherein: the rotating rod (20) is rotatably provided with a rubber ring (23), and the rubber ring (23) is positioned in the second through hole and abuts against the inner wall of the second through hole.

6. A high pressure grouting machine as claimed in claim 1, wherein: the discharging pipe comprises a first pipe (17) and a second pipe (18), the first pipe (17) is a hose, one end of the first pipe (17) is fixedly connected with the outlet end of the high-pressure pump (1), the other end of the first pipe (17) is fixedly connected with the second pipe (18), the second pipe (18) is a hard pipe, and one end, far away from the first pipe (17), of the second pipe (18) is connected with the spray head (2).

7. The high pressure grouting machine according to claim 6, wherein: a clamp (19) for clamping the second pipe (18) is fixedly arranged on the outer wall of the injection box (27).

8. A high pressure grouting machine as claimed in claim 1, wherein: the bottom of the injection box (27) is provided with a movable trolley (24), and a push rod (25) is fixedly connected to the movable trolley (24).

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